What's the most genius 4D chess strategic move you've seen someone execute at work or in life?

In my youth, I posted at a bustling Dragon Ball Z message board. One year on April Fools, I was

messaged by a particularly popular poster that he would like help pranking the board. A particularly

tasteless joke, he was going to have his girlfriend post that he was

involved in a car accident. To help sell the lie, he wanted me to play devastated and to attack

anyone who dared imply such a thing could be a prank, as I would be the only one who knew the

truth. But here's the rub. He told everyone, about 80 people, that the accident was fake, and that each of us was the only person in on it.

And he told each person to react in a particular way, designed to put them in conflict with the other people he had told to act in a particular way.

I was told to be devastated. Someone else was told to call bullcrap.

Someone else else was told that they were glad he's hurt.

Someone else was told to say they were donating money for his recovery, etc. He just sat back and watched the board

eat itself. It was pretty funny. We spread the word that we were all going to skip the last

half of the day by leaving out the doors at the disused extreme ends of the school that they usually had

difficulty monitoring. One of the NHS officers had a brother who was a fireman, whose chief was a bit

of a safety and regulation stickler. Sure enough, we get to school that day, and the doors at the

extreme ends of the building are chained shut. NHS guy calls his brother at lunch. This was prior

to cell phones, so you had to wait to use a

pay phone, and reports a fire hazard, locked fire exit doors. Result, fire chief himself shows up and

orders the high school evacuated while he does a top-to-bottom inspection of the whole building.

Adding insult to injury, a huge bunch of seniors took off during the evacuation.

One of my co-workers at a previous job hated our boss. Guy was a suck-up to hire management,

made our lives a living hell by not communicating actual requirements, etc, until it was too late,

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